宝钢1 800冷轧工程具有面积大、开挖基坑纵横交错、地质条件复杂以及降水深度深等特点,针对上述问题,对于合理布置降水井点、降水设施及管路等关键难点进行了论述,施工效果表明该降水施工技术保证了基坑施工的安全运行,并成功解决了深井井管沉设的难题,为类似工程提供了借鉴经验。 The 1 800 cold rolling project of Baosteel has the characteristics of large area, criss-crossing excavation pit, complicated geological conditions and deep precipitation. In view of the above problems, the key difficulties such as reasonably arranging precipitation well points, precipitation facilities and pipelines are discussed, The construction effect shows that the construction technology of the rainfall ensures the safe operation of the foundation pit construction and successfully solves the problems of the well pipe laying in deep wells, providing reference experiences for similar projects.